Electric fan



FIG. 1 is a front, top and right side elevational perspective view of an electric fan showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a perspective view thereof, the main portion being rotated with respect to the base portion; and

FIG. 8 is a rear elevational view thereof. 

The ornamental design for an electric fan, as shown and described. 